TECO N310 Series - Precautions for Peripheral Applications

Chapter 3 Ambient Environment and Installation
3-5
3.3.2 Contactor and Circuit Breaker specification and wiring.
Molded-case circuit breaker/magnetic contactor
z Teco bears no responsibility to service for failures caused by the following conditions:
(1) A molded-case circuit breaker is not installed, or an improper or overrated breaker is used,
between the power source and the inverter.
(2) A magnetic contactor, a phase capacitor, or a burst absorber is connected between the inverter
and the motor.
model ：
N310--XXX
20P5 2001 2002 2003
Molded-case circuit breaker made by
Teco
TO-50E
10A
TO-50E
20A
TO-50E 30A
TO-50E
30A
Magnetic contactor (MC) made by
Teco
CN-11
Main circuit terminals (TM1) Wire gauge 2.0 mm
2
terminal screw M4
Wire gauge 3.5 mm
2
terminal screw M4
Signal terminals (TM2)
1~18
Wire gauge 0.80mm
2
( # 18 AWG)
terminal screw M2
Signal terminals (TM3)
1~3
Wire gauge 0.80mm
2
( # 18 AWG)
terminal screw M3
model ：
N310-□□□□-XXX
4001/4002
/4003/4005
4008 4010 4015
Molded-case circuit breaker
made by Teco
50E
15A
50E
20A
50E
30A
50E
50A
Magnetic contactor (MC)
made by Teco
CN-11
CN-
16
CN-
18
CN-
25
Main circuit terminals
Wire gauge
2.0mm
2
terminal
screw M4
Wire gauge
3.5mm
2
terminal
screw M4
Wire
gauge
5.5mm
2
terminal
screw
M4
control circuit
Signal terminals 1～18
Wire gauge 0.80mm
2
( # 18 AWG),
terminal screw M2
RY1 Signal terminals 1～3
Wire gauge 0.80 mm
2
( # 18 AWG),
terminal screw M3
Signal terminals
(above 4010)
Wire gauge 0.80 mm
2
( # 18 AWG), terminal screw M3
z Use three-phase squirrel cage induction motor with capacity suitable for the inverter.
z If one inverter is driving several motors, the total current of all motors running simultaneously must
be less than the rated current of the inverter, and each motor has to be equipped with a proper
thermal relay.
z Do not add capacitive components, such as a phase capacitors, LC or RC, between the inverter and
the motor.